Sofa



FIG. 1 is a front elevational view of a sofa according to an embodiment of the invention.

FIG. 2 is a back elevational view of a sofa according to an embodiment of the invention.

FIG. 3 is a side elevational view of a sofa according to an embodiment of the invention, the opposite side is a mirror image thereof.

FIG. 4 is a top plan view of a sofa according to an embodiment of the invention; and,

FIG. 5 is a perspective view of a sofa according to an embodiment of the invention. 

We claim the ornamental design for a sofa, as shown and described. 